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(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
open Names
open Glob_term
(* Poor's man DECLARE PLUGIN *)
let __coq_plugin_name = "float_syntax_plugin"
let () = Mltop.add_known_module __coq_plugin_name
(*** Constants for locating float constructors ***)
let make_dir l = DirPath.make (List.rev_map Id.of_string l)
let make_path dir id = Libnames.make_path (make_dir dir) (Id.of_string id)
(*** Parsing for float in digital notation ***)
let interp_float ?loc (sign,n) =
let sign = Constrexpr.(match sign with SPlus -> "" | SMinus -> "-") in
DAst.make ?loc (GFloat (Float64.of_string (sign ^ NumTok.to_string n)))
(* Pretty printing is already handled in constrextern.ml *)
let uninterp_float _ = None
(* Actually declares the interpreter for float *)
open Notation
let at_declare_ml_module f x =
Mltop.declare_cache_obj (fun () -> f x) __coq_plugin_name
let float_module = ["Coq"; "Floats"; "PrimFloat"]
let float_path = make_path float_module "float"
let float_scope = "float_scope"
let _ =
register_rawnumeral_interpretation float_scope (interp_float,uninterp_float);
at_declare_ml_module enable_prim_token_interpretation
{ pt_local = false;
pt_scope = float_scope;
pt_interp_info = Uid float_scope;
pt_required = (float_path,float_module);
pt_refs = [];
pt_in_match = false }
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